DUAL-BLOCK and MONO-FORGED configurations available. CONICAL PROFILE reduces overall wheel weight in comparison to typical concave designs. STANDARD Backpad Pocketing. STANDARD Spoke Beam Contouring. AEROSPACE GRADE 6061-T6 forged aluminum for optimun strength-to-weight-ratio. PRECISION CNC production to your specifications for any custom application. OE TPMS and mounting hardware compatible. ENDLESS FINISHING OPTIONS available in polished and custom powdercoated options, customize your F311 to achieve the specific look you are envisioning.